If a block of a horizontal oscillator moving in the positive direction takes 1 (s) to move from the equilibrium position (x=0) to the positive maximum displacement (x=+A) ,Then the period T of this simple harmonic motion is equal to:​

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

When solid surfaces slide over each other the kind of friction that occurs is called friction